bacteria macro view, cocci cells, grape-like clusters, biological background. concept of infection detection, food

bacteria biology microscope macro cells virus staphylococcus micro microorganisms illustration microbes proliferation skin medicine up scalp bacillus purulent medical background circle enterobacteriaceae experiment enteric fungus immunity microbiology pneumococcal microorganism microscopic organism pathogenic pericarditis pneumococcus salmonella pneumoniae prophylaxis red rendering research sepsis staphylococci microbial ai generated